Cod sursa(job #1817453)

Utilizator GeoeyMexicanuBadita George GeoeyMexicanu Data 27 noiembrie 2016 20:44:41
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.46 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int x,n;
int pow(int x,int n)
{
    if(n<0)
        return pow(1/x,(-1)*n);
    else
        if(n==0)
        return 1;
    else
        if(n==1)
        return x;
    else
        if(n%2==0)
        return pow(x*x,n/2);
    else
        if(n%2!=0)
        return pow(x*x,(n-1)/2);
}
int main()
{
    f>>x>>n;
    g<<pow(x,n);
}